They're an abuse of the ECHR right of assembly. They know they will attract Rangers fans of the least desirable sort, they know there will be disturbances, they know they're not welcome in areas where sectarianism hasn't done ridiculous amounts of destruction and finally they know how much it costs to police their silly marches. It is a well known fact that it isn't in favour of protestants, but rather anti-Catholic. Orange 'cultists' seek to fuel hatred and they've got practice and experience on their side, so they're doing a good job.